Class: GeoPoint

GeoPoint 地理坐标.

Table of contents

Constructors

• constructor

Properties

• (#x)
• y
• z

Methods

• add
• angle
• angleTo
• angleWith
• angleWithSep
• clone
• distSqr
• distanceTo
• div
• divByPoint
• dot
• equals
• equalsZ
• lengthSq
• lerp
• mag
• matMult
• mult
• multByPoint
• perp
• roateAround
• rotate
• round
• roundInt
• roundStr
• sub
• toArray
• toString
• transform
• unit
• convert
• fromString

Constructors

constructor

+ new GeoPoint(x: number, y: number, z?: number): GeoPoint

GeoPoint 构造函数

Parameters

Returns: GeoPoint

Properties

x

• x: number

坐标X.

---

y

• y: number

坐标y.

---

z

• Optional z: number

坐标z(可选）.

Methods

add

▸ add(p: GeoPoint): GeoPoint

两个点相加.

Parameters

Returns: GeoPoint

---

angle

▸ angle(): number

角度.

Returns: number

---

angleTo

▸ angleTo(b: GeoPoint): number

距一个点的角度

Parameters

Returns: number

---

angleWith

▸ angleWith(b: GeoPoint): number

距一个点的interiorAngle

Parameters

Returns: number

---

angleWithSep

▸ angleWithSep(x: number, y: number): number

距一个点的interiorAngle

Parameters

Returns: number

---

clone

▸ clone(): GeoPoint

克隆一个坐标

Returns: GeoPoint

---

distSqr

▸ distSqr(p: GeoPoint): number

两点之间距离平方.

Parameters

Returns: number

---

distanceTo

▸ distanceTo(p: GeoPoint): number

两点之间距离.

Parameters

Returns: number

---

div

▸ div(k: number): GeoPoint

除一个系数.

Parameters

Returns: GeoPoint

---

divByPoint

▸ divByPoint(p: GeoPoint): GeoPoint

两个点相除.

Parameters

Returns: GeoPoint

---

dot

▸ dot(p: GeoPoint): number

Parameters

Returns: number

---

equals

▸ equals(other: GeoPoint, dotErr?: number): boolean

判断是否相等

Parameters

Returns: boolean

---

equalsZ

▸ equalsZ(other: GeoPoint): boolean

是否相等（判断z).

Parameters

Returns: boolean

---

lengthSq

▸ lengthSq(): number

Returns: number

---

lerp

▸ lerp(v: GeoPoint, alpha: number): GeoPoint

Parameters

Returns: GeoPoint

---

mag

▸ mag(): number

长度.

Returns: number

---

matMult

▸ matMult(m: number[]): GeoPoint

乘一个矩阵.

Parameters

Returns: GeoPoint

---

mult

▸ mult(k: number): GeoPoint

乘一个系数.

Parameters

Returns: GeoPoint

---

multByPoint

▸ multByPoint(p: GeoPoint): GeoPoint

两个点相乘.

Parameters

Returns: GeoPoint

---

perp

▸ perp(): GeoPoint

投影 [x,y] = [-y, x].

Returns: GeoPoint

---

roateAround

▸ roateAround(angle: number, p: GeoPoint): GeoPoint

绕一个点旋转.

Parameters

Returns: GeoPoint

---

rotate

▸ rotate(angle: number): GeoPoint

旋转.

Parameters

Returns: GeoPoint

---

round

▸ round(fixed?: number): GeoPoint

后小数点几位取整

Parameters

Returns: GeoPoint

---

roundInt

▸ roundInt(): GeoPoint

四舍五入取整.

Returns: GeoPoint

---

roundStr

▸ roundStr(fixed?: number): string

Parameters

Returns: string

---

sub

▸ sub(p: GeoPoint): GeoPoint

两个点相减.

Parameters

Returns: GeoPoint

---

toArray

▸ toArray(): number[]

返回数组

Returns: number[]

The coordinates represeted as an array of x and y.

var ll = new vjmap.GeoPoint(-73.9749, 40.7736);
ll.toArray(); // = [-73.9749, 40.7736]

---

toString

▸ toString(fixed?: number): string

返回字符串.

Parameters

Returns: string

The coordinates represented as a string of the format 'x, y, z?'.

var ll = new vjmap.GeoPoint(-73.9749, 40.7736);
ll.toString(); // = "GeoPoint(-73.9749, 40.7736)"

---

transform

▸ transform(basePt: GeoPoint, destPt: GeoPoint, scale?: number, angle?: number): GeoPoint

对一个点围绕一个基点进行缩放旋转平移操作.

Parameters

Returns: GeoPoint

---

unit

▸ unit(): GeoPoint

单位长度.

Returns: GeoPoint

---

convert

▸ Static convert(input: GeoPointLike): GeoPoint

根据不同的类型创建地理坐标 GeoPoint .

Example:

const p1 = GeoPoint.convert(new GeoPoint(x, y, z));
const p2 = GeoPoint.convert([x, y]);
const p3 = GeoPoint.convert([x, y, z]);
const p4 = GeoPoint.convert(lng: -73.9749, lat: 40.7736});
const p5 = GeoPoint.convert(lon: -73.9749, lat: 40.7736});

Parameters

Returns: GeoPoint

---

fromString

▸ Static fromString(input: string): GeoPoint

根据字符串创建 GeoPoint.

Example:

const b = GeoPoint.fromString("1,2");

Parameters

Returns: GeoPoint

vjmap / Exports / GeoProjection